If the equal is 55x + 35y = 200
x: time-driven at 55 miles/hour
y: time-driven at 35 miles/hour
If the car spends 2.5 hours at 35 miles per hour, then it drove:
55x + 35(2.5) = 200
55x =35
y = 112.5
There the drive spent about 2.5-hour driving at 55 mph.
Hope it helps!
Answer:
Not rlly sure, might be x=4/5y??? i dont know
Answer:
-2 x (5x-12)
Step-by-step explanation:
Answer:
<em>The expression is </em><em>P - 5</em>
Step-by-step explanation:
Rihanna already made a deposit of $5 to buy the necklace (given)
Full price of necklace = P
Let m = how much Rihanna has left to pay
Full price of necklace = amount paid + amount left to pay
= 5 + m
So we equate the two full necklace prices
5 + m = P
m = P - 5
Therefore, the amount Rihanna owes before tax = P - 5
